Open AccessSolar-assisted dual-effect adsorption cycle for the production of cooling effect and potable water
Author(s) -
Kim Choon Ng,
Kyaw Thu,
Anutosh Chakraborty,
Bidyut Baran Saha,
Wongee Chun
Publication year - 2009
Publication title -
international journal of low-carbon technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.458
H-Index - 26
eISSN - 1748-1325
pISSN - 1748-1317
DOI - 10.1093/ijlct/ctp008
Subject(s) - desalination , adsorption , silica gel , environmental science , materials science , solar energy , tonne , process engineering , nuclear engineering , environmental engineering , chemical engineering , chemistry , waste management , composite material , engineering , electrical engineering , organic chemistry , biochemistry , membrane
This paper investigates the performance of a solar-assisted adsorption (AD) cycle which produces two useful effects, namely cooling and desalination, with only a low-temperature heat input such as thermal energy from solar collectors. Heat sources varying from 65 to 80°C can be obtained from 215-m2 flat plate-type solar collectors to regenerate the proposed silica gel-water-based AD cycle. In this paper, both mathematical modelling and experimental results from the AD cycle operation are discussed, in terms of two key parameters, namely specific daily water production (SDWP) and specific cooling capacity (SCC). The experimental results show that the AD cycle is capable of producing chilled water at 7 to 10°C with varying SCC range of 25-35 Rton/tonne of silica gel. Simultaneously, the AD cycle produces a SDWP of 3-5 m3 per tonne of silica gel per day, rendering it as a dual-effect machine that has an overall conversion or performance ratio of 0.8-1.1. © The Author 2009. Published by Oxford University Press. All rights reserved
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